Sewing-machine attachment.



E. A. ILLIG.

SEWING MACHINE ATTACHMENT.

APPLICATION FILED JULY 8.1915.

1,173,973. Patented Feb. 29, 1916.

Attorneys TE STATES PATENT OFFICE.

EDWARD A. ILLIG, ERIE, PENNSYLVANIA, ASSIGNOR OF ONE-HALF T0 EDWARD F.

SHUGART, 0F ERIE, PENNSYLVANIA.

SEWING-MACHINE ATTACHMENT.

Specification of Letters Patent;

Patented Feb. 29, 1916.

Application filed July 8, 1915. Serial 1%. 38,735..

To all whom it may concern:

Be it known-that I, EDWARD A. ILLIG, a citizen of the United States, residing at Erie, in the county of Erie-and State of Pennsylvania, have invented a new and useful Sewing-Machine Attachment, of which the following is a specification.

The device forming the subject matter of this application is adapted tobe employed for applying the under thread in a sewing machine, directly from a spool,

thereby dispensing with the use of a bobbin.

The invention aims to provide novel means for holding the spool in place so that it may rotate on its axis, and to provide novel means for applying the thread directly from the spool without the interposition of a bobbin or shuttle, such a conthat changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed. without departing from the spirit of the invention.

In the accompanying drawings :Figure 1 shows the invention in front elevation; Fig. 2 is a side elevation; Figs. 3 and 4 are cross sections, Fig. 3 being taken onthe line 3 3 of'Fig. 1 and Fig. 4 being taken on the line l-ijof Fig. 1; Fig. 5 is a perspec-. tive view showing the actuating shaft and the driving head which is carried thereby; F ig. 6 is a perspective view showing the interior of the back portion of the spool carrier; Fig. 7 is a sectional detail enlarged from Fig. 4.

In carrying out the present invention there is provided a bearing 1 which may be assembledin any desired manner with a portion of the frame work of a sewing machine (not shown). Atspaced points throughout its periphery, the bearing 1 is equipped with outstanding lugs 2. In the bearingl there is formed a chamber 3 and in the rear wall 4 of the bearing 1 there is an opening 5 in which is journaled for oscillating movement, the usual shaft 6 which constitutes a part of a sewing machine of known and approved type. To one end 7 of the shaft 6 is secured a driving head 8 in the forward face of which is formed a concavity 9. Located adjacent the rim of the driving head 8 and adjacent the periphery of the concavity 9 are forwardly presented driving lugs 10. The bearing 1' is flattened slightly on top, or is cut away, thereby forming an opening 12which communicates with the chamber 3. The driving head Sis located in the chamber 3 and rotates with the shaft 6 in close relation to the rear wall 1 of the bearing 1.

In carrying out the invention there is provided a spool holder which is a coinposite structure, the same including a back 14, the rear face of which is convexedas shown at 15, so that the back may enter the concavity 9 of the driving head 8, the back, for the most part, lying in the chamber 3 of the bearing 1. The back 14 comprises a marginal flange 16, which, as shown in Fig. 4, cooperates with the forward edge of the bearing 1. Throughout a portion of its periphery, the back 14 of the spool holder is cut away as shown at 17, thereby removing a portion of the flange 16, one end of the flange 16 terminating in a loop-taking hook 18 adapted to cooperate with the needle thread of the sewing machine. In the rear wall of the back portion 14 of the spool holder there are formed openings 19 which are adapted to receive the lugs 10 on the driving head 8, to the end that when the driving head is rotated, the back portion 14 of the spool holder may be rotated also. In the forward face ofthe back 14 there is a sem cylindrical recess 20, the space between the recess 20 and the flange 16 constituting a shoulder 22.

The spool holder comprises, further, a front 23 which is convexed as shown at 33. Throughout a portion of its periphery, the front 23 of the spool holder is flattened as shown at 25, there being located, partly in the flattened portion 25 of the front and partly in the circumferential wall thereof,

a needle receiving opening 24:. The front 23 of the spool holder fits within the contour of the flange 16 of the back and abuts against the shoulder the rear face ating with the recess in the back lelpi's adapted to receive a spool, the endflanges or walls of which are shown at 28in Big,

1, the front 23-of the spool holderbeing equipped with parallel slots 27,'in which the flanges 28 of the spool are loosely received, the construction being such that the spool is held; in place for rotation about its axis,'in therecess 26 and 20, the spool at the same'time, being adapted to rotate with the spool holder, comprising 'the'parts 1 1 and 28, when the spool holder rotates with the driving head 8 and the shaft 6. 1n the back Ll there is a recess 21 receiving the inner'end of a latch 101 mounted to swing on a pin 102 passed through the back transversely, thelatch 101 being provided at its forward end with a head 103. In the front 23 there is a slot 29 in which the head carrying 'end'of the latch 101 is mounted tomove, the front being provided with a shoulder 107 with which the headl03 of the latch is'a'dapted'to engage. Aspiring 101 bears against the head 103 of the latch 101 to maintain the head of the latch engaged with the shoulder 107, the spring 10+ being hooked as shown at 10 5, if desired, around the pm 102. The back ll'jmay be provided with a dowel pin 108 vreceived in a recess in the'front 23. The front '23 of the'spool holder is equipped with a central opening 32 through which passes the thread carried by the spool. V t I 7 Applied to the forward face of the hear- I ing 1 vis a'collar 30, the same being held in I bearing. 1.

place by means of screws 35which enter the lugs'2 of the bearingl. The top of the collar 30 is flattened as shown at 36 "and; is cutaway as shown at 37 to define an opening cooperating with the opening 12 of the carrier lat-23 in place on the bearing 1 for rotation and so positions the spool. carrier that the openings 19 in the back'14 of the spool carrier are held in engagement with the lugs 10 on the driving head 8.; In the inner edge of the collar 30 there is formed Copies of this 'patent may be obtained for The'collar 30 holdsthe spool a race-1, 31 andin this race the flange' 16 of of the front 23 ofthe spool holder is formed 1 a fsemi-cylindrical recess '26 which, cooper the bElClL 1 1 of thespool holder. is received for oscillating o'r rotary mavement;--'

' The operation of the device will be under- .stood'clearly'in View of the well known function of an oscillating shuttle but itis to be cbservedthat in this deviceno shuttle or bobbin is necessary, the spool being mounted directly in the spool holder or carrier and the carrier being so constructed that the spool may readily be inserted in place. lVhen it is necessaryto replace-the spool, the head 10=5v of the latch 10 1 is pressed down against the action 'of the rspring 104:,the h'ead'beingjdisengaged from the shoulder 107, whereupon the front may be removed. I

Having thus described the invention,

that claimed 'is: i I

1. In a sewing maehlne, 'afspool carrier embodying a front and'a backhaving com- V pleinental recesses delinin'g a spool receiving 1 chamber, the front shaving parallel slots therethrou'gh"adapted to receive the flanges of a spool to hold the latter against en'dwis'e movement'and for rotationand to render the spool accessible, for manipulation; means for "d'etacha bl'y uniting th'e' froiit and the back; and means for rotating the carrier.

support and the ring being provided .with

cooperating openings in their tops, andthe' front having a circumferential slot adapted to cooperate with theopenin'g in the'ri-n'g; ,1

In f n b y thati e1ainithe foregoing ture in the resence-er two witnesses,

I Vllitnesses: V t

HARRY MAYO, T W. "WBmmm-E. H

five cents each, by addressing the Commissioner dreams,

Washington, D. C. I

' EDWARD A. ILL GLQ 

